S+S Regeltechnik AERASGARD RFTM-LQ-CO2-Modbus Notice D'instruction page 14

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®
AERASGARD RFTM - LQ - CO
The maintenance-free, microprocessor-controlled AERASGARD
connection, with ⁄ without optional display, in an elegant housing, plastic, with snap-on lid, base with 4-hole attachment, is used to to monitor the entire
room climate. For this purpose, measurands air humidity, temperature, CO
is optionally available as an operating element. By using a single device to monitor all four measurands, it is possible to effectively monitor and regulate the
entire room climate. It measures CO
in the range of 0...+50°C, as well as relative air humidity from 0...100 % r.H.
A digital, long-term stable sensor used as measuring element for relative air humidity and temperature guarantees exact measurement results. The air
quality is determined based on a (VOC) gas mixture sensor. The CO
technology).
TECHNICAL DATA
Voltage supply:
Power consumption:
Data points:
HUMIDIT Y
Sensors:
Operating range, humidity:
Deviation, humidity:
TEMPERATURE
Operating range, temperature:
Deviation, temperature:
AIR QUALIT Y (VOC)
Sensor, VOC :
Measuring range, VOC :
Measuring accuracy, VOC :
Service life:
CARBON DIOXIDE (CO )
2
Sensor, CO :
2
Measuring range, CO :
2
Measuring accuracy, CO :
2
Temperature dependence, CO
2
Pressure dependence:
Long-term stability:
Gas exchange:
Bus protocol:
Signal filtering:
Ambient temperature:
Warm up time:
Response time:
Electrical connection:
Housing:
Dimensions:
Installation:
Protection class:
Protection type:
Standards:
Optional:
ACCESSORIES
- Modbus
2
in the range of 0...5000 ppm, VOC at one of three selectable sensitivity levels LOW / MEDIUM / HIGH, temperatures
2
24 V AC ⁄ DC (± 10 %)
< 4.4 W ⁄ 24 V DC typical; < 6.4 VA ⁄ 24 V AC typical; peak current 200 mA
temperature [°C], relative humidity [% RH]
air quality (VOC) [%], carbon dioxide (CO
and setpoint potentiometer
digital humidity sensor with integrated temperature sensor,
low hysteresis, high long-term stability
0...95 % r. H. (without dew formation)
typically ± 2.0 % (20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
0...+ 50 °C
typically ± 0.2 K at +25 °C
VOC sensor (metal oxide) with automatic calibration
(VOC = volatile organic compounds)
0...100 % air quality; referred to calibrating gas;
multi-range switching VOC sensitivity low, medium, high
± 20 % of final value (referred to calibrating gas)
> 60 months (under normal load conditions)
optical NDIR sensor (non-dispersive infra-red technology)
with automatic and manual calibration
0...5000 ppm
typically ± 30 ppm ± 3 % of measured value
: ± 5 ppm ⁄ °C or ± 0.5 % of measured value ⁄ °C
(whichever is higher)
± 0.13 % ⁄ mm Hg
< 2 % in 15 years
by diffusion
Modbus (RTU-Mode), address range 0...247 selectable
4 s / 32 s
0...+50 °C
approx. 1 hour
< 2 minutes
0.2 - 1.5 mm 2 , via push-in terminal
plastic, material ABS, colour pure white (similar to RAL 9010)
98 x 98 x 33 mm (Baldur 2)
wall mounting or on in-wall flush box, Ø 55 mm, base with 4 holes, for attachment to vertically
or horizontally installed in-wall flush boxes for rear cable entry, with predetermined breaking
point for cable entry from top ⁄ bottom in case of plain on-wall installation
III (according to EN 60 730)
IP 30 (according to EN 60 529)
CE conformity, electromagnetic compatibility
according to EN 61 326, EMC Directive 2014 ⁄ 30 ⁄ EU,
Low Voltage Directive 2014 ⁄ 35 ⁄ EU
display with illumination, two line, cutout approx. 36 x 15 mm (W x H),
for displaying actual humidity, actual temperature, air quality and the actual CO
or a selectable parameter (static)
or an individually programmable display value
see table
® RFTM - LQ - CO - Modbus and RCO
2
concentration as well as air quality (VOC) are measured. A setpoint potentiometer
2
content of the air is measured using an optical NDIR sensor (non-dispersive infra-red
2
) [ppm]
2
14
⁄ RLQ - CO ⁄ RFTM - CO - Modbus with Modbus
2 2 2
content (cyclic)
2
Rev. 2020 - V24